结合矢量观测的特点，基于最小模型误差准则给出了一种确定卫星姿态的实时估计算法，称为预测滤波算法。
Considering the character of vector observation, a real time predictive filter based on minimum model error (MME) criterion is presented for satellite attitude estimation.
通过对舰船运动姿态统计分析，以及对ARMA模型和AR模型等价性论证，确定了AR模型作为船舶姿态运动预报的数学模型。
By the statistical analysis of ship motion attitude and equivalent argument about ARMA model and ar model, ar model was identified to be the mathematic model for ship motion attitude prediction.
通过标定试验，确定了模型参数，获得了可用于姿态输出的角度计算公式。
Based on the calibration test, the model parameters are determined, and the output Angle function can be gotten.
建立了小卫星相对轨道和姿态的误差动力学模型，根据作业任务和姿态指向要求确定了小卫星相对轨道和姿态的期望运动；
Positional and attitude error dynamics model of small satellite relative to a target satellite was derived, then the desired relative orbit and desired attitude of small satellite were designed.
着陆段初期，将局部图像提取的特征点与绕飞段建立的特征点数据库进行匹配，结合小天体三维模型，确定探测器在小天体固连坐标系下的位置、姿态等信息；
At the beginning of landing, the position and attitude of spacecraft can be estimated by using feature matching with the 3D shape features database builded during the rotation phase.
着陆段初期，将局部图像提取的特征点与绕飞段建立的特征点数据库进行匹配，结合小天体三维模型，确定探测器在小天体固连坐标系下的位置、姿态等信息；
At the beginning of landing, the position and attitude of spacecraft can be estimated by using feature matching with the 3D shape features database builded during the rotation phase.
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